[completeshock]

Most companies hiring remotely don't have if your 1-person company is US-based or not.

The ones that care to hiring within vetted countries for $reasons usually will not accept exceptions. Notable example is GitHub which has a list of countries they hire from (even though they're owned by MSFT and could hire on the Moon if they wanted).

Having a company is mostly for tax purposes. It makes everything easier. I think the hiring company doesn't care if the contract is done with a business or an individual. Both are usually limited liability and offer no advantage in case of contract breaches.